Rotary-type brick and briquetting press



D. SINGH, ROTARY TYPE BRICK AND BRIQUETTING PRESS.

APPLICATION HLED AUG-2.9, I921.

Patent ed Feb. 28, 1922.

3 SHEETS-SHEET 1.

D. SINGH. ROTARY TYPE BRICK AND BRIQUETTING PRESS. APPLICATION FILED Auelzs. 1921.

1,40 ,.3 1 Patented Feb. 28, 1922.

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D. SI NGH. ROTARY TYPE BRICK AND BRIQUETTING PRESS.

APPLICATION FILED AUG.29, 1921.

Patented Feb. 28, 1922.

3 $HEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

DELPH SINGH, 0F SYDNEY, NEW SOUTH WALES, AUSTRALIA.

ROTARY-TYPE BRICK AND BBIQUETTING PRESS.

T 0 all whom it may concern:

Be it known that I DELPH SINGH, a subject of the King of Great Britain and Ireland, residing at Sydney, New South Wales, Australia, have invented certain new and useful Improvements in Rotary-Type Brick and Briquetting Presses, for which I have filed applications in the Commonwealth of AustraliaNo. 12751, filed Aug. 145, 1920; in France, in Belgium and in Great Britain,) of which the following is a specification.

This invention relates to machines for pressing dry plastic stock to produce building bricks or fuel briquettes.

- It consists of. a machine of that type in which radially disposed mould boxes are contained in rotary drum structures and in which plunger dies are caused to efiect compression of the stock in said mould boxes during the-rotation of the drum,'the charge entering the mould boxes as same pass the loading position, and the pressed brick or briquette being ejected as the mould boxes pass the delivery position.

According to the present invent-ion the inner plungers which form-= the bottom dies receive radial motion from the eccentric abutment within the drum, whilst the top dies are carried in a rocking frame to which a follow movement isapplied by cam action, the primary dies effecting initial compression and the finishing dies, applying final pressure through toggle and eccentric action.

Inthe accompanying drawings Fig. 1 is a side elevational view of the machine;

Fig. 2 is atop plan view of same, certain parts being shown in section for clarity of illustration; 'Fig. 3 is a semi-diagrammatic view showing the oscillating die frame and its operating means; l

Fig. l is. a and v .Fig. 5 is a half-transverse vertical section.

In the machine as shown in the drawings the drum 10 contains two courses-of mould boxes 11-11,the moulds being arranged in pairs symmetrically, but itwill be understood' that the drum may contain only one suclrcourse ofmould boxes or three or more courses, though in practiceit will be probably found most effective with two courses of mould boxes as shown. These boxes are fitted with liners 12 which are replaceable. There may be any required number within longitudinal vertical section;

Specification of Letters Patent. Patented Feb, 28, 1922,

Application filed August 29, 1921. Serial No. 496,354.

extreme limits of clearance of mould boxes in each course, but in practice twelve such boxes will-be found to provide an effective and compact arrangement. In each box a bottom plunger die 13 is slidably fitted, and the lower ends of these dies rollers 14: adapted to run on the eccentrically disposed circular face 15 formed on the central portion of the drum shaft 25. The roller journals 16 run in guide grooves 17 in the ring flange 18 and the pinned on flange 19. In the rotation of the drum 10 about the shaft the plunger dies 13 are caused to perform a cyclic movement. As each mould box attains the uppermost position immediately below the charging chute 20, the shoe 21 of which runs on the drum periphery, the plungers are at their lowest position, so that the stock runs from the chute 20into the mould box and fills it as clearly seen in Fig. 4:. As rotation of the drum continues, the mould boxes successively charged come into the range of the primary top dies 22 which operate to compress the stock in them, the plungers meanare armed with J time gradually'moving outward to the horizontal position wherethe final pressure is applied by the secondary top dies 23. From thence onward to the lowermost or ejecting position the bottom. plungers13 move downwardly forcing the pressed bricks or briquettes 'outthrough the moulds and dischargingthem on to a take off belt 24.

The shaft 25 is fixed in the bracket carriers 26; it is hollow and, as already described, its central portion is eccentrically disposed to form the grooved eccentric track on which the plungers 13 take their working abutment. The barrel 10 is car. ried on cheeks 27 pinned up to it as shown at 28; these cheeks taking their bearing on bushes 29 at either side of the machine, said bushes being fitted on the shaft 25. Between the bracket carriers 26 and the drum checks, the die cranks 30 mounted on the sleeved portions 31' of the die crank eyes, and the 1 scribed. Each die crank'30 is also connected by ,a link 46 and a cross head pin 47 to a sleeve frame 48. This sleeve frame carries the finishing dies 23 and :it is connected :by;

wrist pins 33 to the connecting rods 49 on eccentrics 50.011 the main shaft .51. The main shaft is geared by a chain 52 to the intermediate shaft 53 which carries spur gears inter-meshing with the spur gears 55 on the sides of the drum, andthese gears 55 in :turn mesh with the spur gears 56 on the :way shaft 57 to which are keyed the cams'58 which function to apply oscillating motion to the frame38. This motion is applied 'hythe cams 58 through contactrollers 59 on'sl-ipper guides 60 working on the an-v gular slipper faces 61, the P111562 being carried in the eyes of the rock links 63 which are pin connected to the lugs 64 on the oscillating frame 38. 'The sleeve frame 48 is adapted to slide on the horizontal portion of the' oscillating frame 38. The gearing proportion is related throughout 'to procure correct timing of the movements of the the various parts. The way shaft 57 is geared 4:1 from the drum wheels 55 and as each cam '58 isa three lift cam it will therefore apply twelve moyementsto the oscillating frame for each rotation of the -drum, t'hese twelve movements corresponding with "the number of die boxes contained in each course, that is twelve. 1

"The operation is as follows :C0mmen[cing ifirom the point at which t he cams 58 are at maximum lift and the slippers 60 in their extreme forwardposition, as shown by the dottledfline at Figp3, the guide horn 37 is in the dotted positionjs'howmat fi Fig. and one of the mould' boxes in each course, having received its charge of-stock is moved clear from the lip at the foot of the charging chute 20. In this position the rear arms '39 of the rocking frame are in the down position shown at 75,-Fig. 3, and the spr ing'plungers 45 are bearing against the face of the drum 10. As soonas one of the' mo'uld boxes comes into-alignment with aplunger 45 the plung'er enters it. Itw'ill -be"-noted that the plunger"heads4l are pulled inward when the arms'39 'are swung downward, "this inward pull bein' effected by means ot'the links 43 which, owing to the downward movement of the arms 39,"are thrown into an angular position virtually foreshortening the position of the pin 42, drawing it towards the drum and therefore applying pressure to the heads 45. Rotational movement of the drum acting through the p-hingers 45 and the arms 39 moves the frame 38 with 'the drum, thereby holding horn guide 37 and the sleeve gu'ide48 stock therein.

in alignment with two of the mould boxes in each course. Meantime, the rotation of the ina-in shaft 51 continuing and reciprocating motion being transmitted therefrom through the connectingrods 49to the sleeve frame 48, the secondary dies 23 are forced into the 'mouldboxes in which they are engaged, whilst the primary dies are similarly forced into the mould boxes in which they are engaged, the primary die movementbeinguape plied fromithesleeve frame 48 :through the links 146.;tl1edie cranks 30 andxthe links 134.

When the horizontal position is passed the retiringemovement of 'the' sleeve frame 48 effected by the .OlltWfLI'ClrIIlOVGIIIGHt of the connecting rods 49 -operates to turn the cranks .30 so.;thatthe prlima-ry diesw22 are drawn out of. the mould, boxes in which they were engaged simultaneously with :the 'withdrawal of'the secondary dies 23 from the mould boxes. At the .inoinentzafter-the .dies areiclear of=the drum .facethe upper position 76 of the rocking arms 39.is reached. In

this position the spring :plungers are withdrawn owing-Ito -the angularmovement of the links 43, clearance being showniat. .77. Atthis point each; roller .59 is .bearin in oneof :the ldepressionszof the cams 58. 1 mmediately thereafter the :cam rotation operates to apply reverse oscillation itowthecoscillating frame .38 through the link motion 63 andqthe same cycle .of-operation is.:repeated, the primary and; secondary (dies successively entering the successive moulds and applying-secondary lpressure .on the As the moulds carrying-the finally pressed stock leavewthe secondary dies 23 the outward movementof the bottom die plungers 1'3 continues and :the :bricks or briquettes'are gradually forced .out of the mould boxes iand ias :the :inould boxes successively reach-- ..:the .bottom' position the finished bricks or briquettes are ejected therefromon [to the take :01! .belt 24; i

It willbeunde'rstood tha't the .cam she the clearances, thetiming, and sthe ar adjustment 'ofithe parts :must be carefully related so that each of them eoact inrunison to procure the required oscillating trame and the primary and fin ishing dies, and similarly thatithe-nmove ments; of the :bottom die .plnngers must be appropriately related to the movements of the top dies ,--having regard tion ofthe moulds'in relation to ing hopper and'the'take ofi'belt. 1

W -hat claim as my'invention and desire to secure by Letters Patent is: V

1. A rotary press of the type herein defined. characterized in that the stock is received by gravity into moulds located radially in a rotating drum, that primary and secondary dies are carried in an 0srthe Tch argmovements of the also :to the posicillating frame, and that-said frame is caused to oscillate in stage movements by cam action and is automatically interlocked with the drum during its movements in one direction, that pressure is applied to the secondary dies from eccentric mechanism coacting directly on a sleeve frame and more courses of mould boxes arranged raon said oscillating dially therein adapted for rotation about said axle, bottom plunger dies acting in said moulds and operated by eccentric action in rolling over the eccentrically disposed portion of said axle an oscillating frame 38 with rear tail 39 mounted on the axle centre, free cranks also mounted on the axle centre, cams 58 acting through linkage 63 frame, a sleeve frame 48 carrying the final dies, linkage connecting the free cranks 30 to the primary dies, horn guides 37 for said primary dies and connecting rods l9 acting on the sleeve frame 48 for applying motion to said dies, a cross beam 40 carried by the oscillating frame arms 39, linkage 4:3 controlling spring plunger movements in said cross beam, and means for applying timed rotational movement to the shaft governing the movements of the connecting rods 49, the shaft carrying the cams 58, and the drum 10.

3. A press of the type herein described, comprising a drum such as 10 having a course or courses of mould boxes therein said drum adapted for rotation on an axle having an eccentric portion, With bottom plungers 13 in said moulds controlled by the movements of their heels on the eccentric portion of said shaft, in combination with connecting rods 19 acting through a frame 48 and free cranks 30 with intervening linkage to apply plunging movement to the top dies, and an oscillating frame 37, 3S and 39 with locking means on one of its members and oscillating means dependent upon cammotion coacting substantially as herein described with reference to the accompanying drawings.

In testimony whereof I affix my signature.

' DELPH SINGH. 

